Janowitz, M., & Hirsch, P. M. (1981). Reader in public opinion and mass communication (3rd ed.). Free Press.
Lua i Stíl Chicago (17ú heag.)Janowitz, Morris, agus Paul M. Hirsch. Reader in Public Opinion and Mass Communication. 3rd ed. New York: Free Press, 1981.
Lua MLA (9ú heag.)Janowitz, Morris, agus Paul M. Hirsch. Reader in Public Opinion and Mass Communication. 3rd ed. Free Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.